基于AMESim-Simulink的船舶液压推进系统仿真研究

为理清油液体积弹性模量、管路长度和补油压力等参数对船舶液压推进系统动态特性的影响,运用AMESim软件建立了液压推进仿真模型,利用Simulink软件建立了螺旋桨负载模型,二者联合进行仿真分析。结果表明,相比于补油压力,油液体积弹性模量和管路长度对航速动态响应影响较大,但三者对航速的最终稳定值影响较小。因此,对于实际的船舶液压推进系统应尽量缩短管路长度,适当提高补油压力,并保证油液冷却良好。

Simulation of Marine Hydraulic Propulsion Based on AMESim-Simulink Co-simulation

In order to make clear the influence of oil volume elastic modulus, the length of the pipeline and the oil pressure on marine hydraulic propulsion system dynamic performance. The hydraulic propulsion simulation model was established by AMESim software and the model of the propeller load was established by Simulink.Combined with the hydraulic propulsion simulation model and load model,the whole simulation is completed.The results show that the oil volume elastic modulus and the length of the pipeline have a larger influence on the dynamic response of the speed, compared to the oil pressure. but they all have little influence on the speed of the steady state. So, the real marine hydraulic propulsion system should shorten the the length of the pipeline, improve the oil pressure, and ensure that the hydraulic oil is well cooled.